Comments (3)
hey, are training and test .h5 files , eg. train/2015.h5
with simliar data shape (4D data)
from fourcastnet.
I am also wondering about that, did you find any solution so far?
In their paper they write
we use a time-averaged climatology in this work, motivated by [Rasp et al., 2020])
which is https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020MS002405 defined just above A1, so that seems to be the correct way 🤷🏼
from fourcastnet.
Digging further into this, I found in the appendix this description:
long-term-mean-subtracted value of predicted (/true) variable v at the location denoted by the grid co-ordinates (m, n) at the forecast time-step l. The long-term mean of a variable is simply the mean value of that variable over a large number of historical samples in the training dataset. The long-term mean-subtracted variables X ̃ pred/true represent the anomalies of those variables that are not captured by the long term mean values
which reads that we subtract from our variables their mean -- which we do during data loading, and the mean is correctly computed over a long term (in get_stats.py
)
--
Edit: However, there's the thing that the variables are also scaled by their std_dev
. so it's not only the mean that is removed
from fourcastnet.
Related Issues (16)
- Checklist before open sourcing
- Possibility of using different resolution input data over smaller areas
- Trouble with downloading data HOT 6
- Help editing code to run train.py on smaller h5 files
- TP accuracy HOT 1
- Unable to download the weights HOT 1
- Smaller version of dataset
- Regarding the pre-trained weight file backbone.ckpt HOT 1
- minor fixes
- how to reproduce your result on 80*40 resolution features? HOT 1
- AFNO implementation differs from paper
- Pre-processing stage key error HOT 6
- problem with downloading pre-trained model HOT 1
- Pre-processing parallel_copy.py
- How to understand the core code in FFT?
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